global climate change

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A transmission substation decreases the voltag...Image via Wikipedia

The Economist magazine hosted an online debate earlier this week, on the proposition "We can solve our energy problems with existing technologies today, without the need for breakthrough innovations."? Speaking in favor of the proposition was Joseph J. Romm, Senior Fellow at the Centre for American Progress. Speaking against was Peter Meisen, President, Global Energy Network Institute.

In my opinion, although Meisen had some good observations of some non-"business as usual" innovations that are needed, the proposition was well-defended by Romm. He argued that not only do we not have time to wait for new breakthroughs in alternative energy, we have enough technology now - solar thermal, efficiency, wind, etc. - that we can address climate change with our current capabilities. He agrees that innovations will be welcome, but they are not required.

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On 140 acres of unused land on Nellis Air Forc...Image via Wikipedia

I wrote on Monday about why I am optimistic that we will come out of this energy mess in excellent shape. But, my optimism is not unalloyed - there are a lot of questions still to answer.

  • Is there truly enough capturable solar energy streaming down on the Earth to power a good lifestyle for all 9 billion of us in 2050? Clearly not, at least at the U.S.'s current per capita energy intensity. What about at 50% of our current energy use? That's a target that many think we can accomplish here in the U.S., so why not around the world?
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